CE Certification China Suppliers Bi-Metal Thermometer 4 100mm with Electric Switch Contacts - Factory Direct Temperature Control Solution Manufacturer, Suppliers

Introducing our advanced electric contact bi-metal thermometer, a reliable solution for temperature measurement in various industrial applications. Designed to utilize a bimetallic coil, this thermometer is equipped with electrical contacts to alert users or control external devices when a predetermined temperature threshold is reached. This feature makes it an excellent choice for industrial automation, pipelines, boilers, and HVAC systems, providing efficient on-signaling for automatic control, Ideal for situations where on-site temperature indication is necessary while simultaneously requiring circuit activation, our bi-metal thermometer with switch contacts stands out. The adjustable switch contacts (electrical alarm contacts) operate based on the position of the pointer on the measuring instrument, providing flexibility across the entire measuring range. The instrument's pointer (actual value pointer) can move freely throughout the scale range, regardless of the settings. Users can easily adjust the set pointer via a window using a removable adjustment key, As a leading manufacturer in China, we pride ourselves on offering high-quality thermometers. Partner with us as your trusted suppliers and factory for innovative temperature solutions

Product Description

Product Specifications
CaseChromed steel
Size75mm (3"), 100mm (4")
Ring (Cover)Acrylic in snap-in cover type
WindowPolycarbonate or instrumental glass
PointerAluminum Alloy, Black Finished, Zero-adjustable
DialAluminum alloy in white background, can be in customize brand logo
ConnectionSS304 (or SS316 as per request). Bottom mounting
Thread3/8", 1/2"; PT (BSPT, ZG), BSP (G, PF), NPT etc as per request
Sensing ElementBi-metallic coil
AccuracyClass 1.6 as per EN 13190 (as standard), maximum class 1.0
Over pressure limit110% of full scale value
Ambient temperature-25°C to +65°C
Process temperatureMax. 400°C
Stem materialStainless steel 304 (SS316 as per request)
Stem bulbDiameter 6mm or 8mm; length from 50mm to 500mm
Wiring typeJunction box (JB) on right side
Contact typeSliding switch SPST
Contact function Single contact N.O. (1a) / Single contact N.C. (1b)
Double contacts N.O.+N.C. (1a1b)
Double contacts N.C.+N.O. (1b1a)
Double contacts N.O.×2 (2a)
Double contacts N.C.×2 (2b)
ProtectionIP65
PackageNatural box package with sticker
Key Features
🛡️
High reliability and long service life
🔧
Universal application
⚙️
Case and stem from stainless steel
Instruments with inductive contacts for use in hazardous areas
💪
Durable, vibration-resistant, suitable for harsh industrial environments
🌡️
Can measure wide temperatures from -50°C to 600°C
🎛️
Customized and often available with different stem lengths, diameters, and case materials
Applications
🏭
Boilers, pipelines, and machinery for process control
❄️
HVAC systems for heating and cooling regulation
🧪
Chemical / petrochemical industry
🍽️
Food processing industries
🔩
Iron and steel industry
💧
Hydraulics and pneumatic
📡
Any application needing local temperature monitoring plus automatic signaling
Frequently Asked Questions
What temperature range can this bimetallic thermometer with switch contacts measure?
This thermometer can measure a wide temperature range from -50°C to 600°C, with a maximum process temperature of 400°C, making it suitable for demanding industrial applications.
What contact function options are available?
Multiple contact configurations are available: Single contact N.O. (1a), Single contact N.C. (1b), Double contacts N.O.+N.C. (1a1b), Double contacts N.C.+N.O. (1b1a), Double contacts N.O.×2 (2a), and Double contacts N.C.×2 (2b).
What thread types and connection sizes are supported?
The thermometer supports 3/8" and 1/2" thread sizes, and is compatible with PT (BSPT, ZG), BSP (G, PF), and NPT thread types. Custom thread specifications are also available upon request.
Can the dial be customized with a brand logo?
Yes. The aluminum alloy dial features a white background and can be customized with your own brand logo, making it ideal for OEM and private-label requirements.
What is the IP protection rating and is it suitable for hazardous environments?
The thermometer carries an IP65 protection rating, ensuring dust-tight and water-jet resistant performance. It is also available with inductive contacts for safe use in hazardous areas and harsh industrial environments.
What stem dimensions are available and can they be customized?
The stem bulb is available in diameters of 6mm or 8mm, with lengths ranging from 50mm to 500mm. The stem is made from Stainless Steel 304 as standard, with SS316 available upon request. Custom stem lengths and diameters can also be arranged.

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